Retire the zone system: one capture = one parameter set, and re-seam the engine and Sample face into bands

src/core/instrument/ui/browser_scroll.cpp

@@ -2,7 +2,11 @@
 
 #include "core/instrument/ui/browser_scroll.h"
 
-#include "core/instrument/ui/editor_geometry.h"  // kPad / kTitleHeight / kNavButtonWidth
+// The Browse modal is a full-window sheet drawn over the Sample face, so it reuses that
+// face's chrome metrics rather than minting its own — a divergent title height or pad would
+// make the sheet visibly not line up with what it covers.
+#include "core/instrument/ui/sample_bands.h"   // kPad / kTitleHeight
+#include "core/instrument/ui/sample_chrome.h"  // kNavButtonWidth (the Back button's slot)
 
 #include <algorithm>
 #include <cctype>